Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Vessel

Miyahata Maru

MMSI 431600459

Not yet on Master's Mate

Flag

JPN

Length

102 m

IMO

9129665

AIS reports

A Japanese craft, Miyahata Maru measures 102 metres. She broadcasts as MMSI 431600459, IMO 9129665. Miyahata Maru belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

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Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

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Wherever Miyahata Maru roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Miyahata Maru on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Miyahata Maru and switch it all on

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About Miyahata Maru

What kind of vessel is Miyahata Maru?

Miyahata Maru is a vessel flagged to Japan.

What is Miyahata Maru's MMSI?

Miyahata Maru's MMSI is 431600459. IMO 9129665.

How big is Miyahata Maru?

Miyahata Maru is about 102 m long.

Is Miyahata Maru on the Master's Mate Safety Initiative Network?

Not yet. If Miyahata Maru is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).